baber/WOPTO huggingface dataset:
Patent GB-637470-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D51/50
Filed: 1947-08-28
Abstract: 637,470. Internal shoe - drum brakes. LEPERSONNE, O. Aug. 28, 1947, No. 23903. Convention date, March 22, 1944. [Class 103 (i)] An internal shoe-drum brake of the selfenergizing type is so constructed that the primary shoe acts as a leading shoe for both directions of rotation of the drum and the ratio of the braking moments exerted by the primary and secondary shoes may be made equal to, less than or greater than one, according to the type required by varying the proportions of the shoes and the disposition of the force transmitting means. Force diagrams are provided to show how this result is obtained by providing an initial brake application force that acts always at the centre of the primary shoe in the plane of symmetry of the brake, the consequent force produced on the shoe, according to the direction of rotation of the drum, being transmitted to a substantially similar secondary shoe which is urged against a fixed abutment so positioned that the required braking moment is obtained. In the practical embodiment shown, the force application means comprises rollers 2 and 3 at each end of a link 4 freely pivoted at 5 to a further link 6 which may be rotated about a pin 7 secured to the brake back-plate by a lever 9 actuated by external means. Movements of the primary shoe 1 are transmitted by elements 19, 20 having rollers 15, 16 and 17, 18 to the secondary shoe 10 which is of a substantially equal arcuate length, and abuts against stops 11 or 12 according to the direction of drum rotation.
Patent GB-167395-A (GB)
Title: An improved tool for use in the finishing of boots and shoes
IPC: A43D95/08
Filed: 1920-08-17
Abstract: 167,395. Birchall, J. Aug. 17, 1920. Tools for finishing the soles and heels of boots and shoes comprises a core a around which is wrapped sand-paper or other abrasive sheet d, a layer of soft material, for example, felt, being interposed between the core and the sand-paper. The abrasive covering is held in place by a bar b which is placed over the joint of the covering, the bent ends of the bar entering reeesses a<2> in the ends of the core, and being retained in position by a rod c passing through a hole b<1> in one bent end of the bar, through a hole a<3> extending axially of the core, and screwing into a tapped hole b<2> in the other bent end of the bar. The rod may have a handle part c<1> and may screw into both of the holes b<1>, b<2>; or a pin may be passed through the projecting end of the rod, neither of the holes being topped. The rod may also be held by a nut screwing on the end c<2> of the rod. The sandpaper is held in position, during assembly of the tool, by pins h. According to the Provisional Specification, the rod may be wedged into the bent end of the bar, or may be secured by a split pin.
Patent GB-424970-A (GB)
Title: Improvements in or relating to the hydrolysis of cellulose
IPC: C13K1/02
Filed: 1933-08-30
Abstract: 424,970. Hydrolysis of cellulose. DREYFUS, H., 22, Hanover Square, London. Aug. 30, 1933, No. 24050. [Class 127] In carrying out the hydrolysis of cellulosic material, the material and hydrolyzing agent are fed through a heated reaction zone at such rates that the liquor is in the reaction zone for a shorter period of time than the solid material. Preferably the cellulosic material and hydrolyzing agent are continuously fed into the reaction vessel, and the products of hydrolysis continuously discharged therefrom. The hydrolyzing agent may be fed into the reaction vessel separately from the cellulosic material, and may be discharged separately from the material which has been treated. Dilute sulphuric acid or other dilute acid. or a solution of an acid salt may be employed as the hydrolyzing agent. Preferably sulphuric acid of a concentration less than 1 per cent is used, and the hydrolysis is effected at temperatures between 120 and 200‹ C., under the corresponding increased pressures. After leaving the converter, the acid liquid, whether or not admixed with the solid material, is preferably cooled as rapidly as possible, and such cooling may be effected by heat exchange with water or dilute acid to be used in the process. After discharge from the apparatus, the solid products may be separated from the acid liquor admixed therewith, and may then, if desired, be used as fuel or returned wholly or in part to the process. Good yields of fermentable sugars which may be employed in the manufacture of ethanol &c., are obtained by the process. It is usually necessary first to neutralize the acid remaining after the hydrolysis, if desired after allowing the liquor to stand or using some other means to promote complete hydrolysis. The process may be carried out in a tubular reaction vessel 1, into which cellulosic material from a container 2 is fed through a rotary valve 19. The vessel 1 is provided with a screw 4 for moving the material towards a discharge vessel 3, and with an inlet 6 and outlet 7 for the liquids used in the reaction, communicating with the interior of the vessel through gauze or the like 8. The central section of the vessel is provided with a heating jacket 9, the remainder of the vessel being preferably logged with heat insulating material. The container 2 is provided with an inlet 11 for compressed air. The pitch of the screw 4 is longer between the liquid inlet 6 and outlet 7 so that the material is less tightly packed in the reaction zone. Preferably the material is employed in the form of a pulp with dilute acid or water.
Patent GB-583771-A (GB)
Title: Improvements in or relating to the plate cylinders of rotary printing machines
IPC: B41F27/10
Filed: 1944-12-01
Abstract: 583,771. Printing-surfaces. GOSS PRINTING PRESS CO., Ltd. Dec. 1, 1944, No.24068. Convention date, Dec. 2, 1943. [Class 100 (ii)] [Also in Group XXII] A stereotype-plate cylinder is provided with means for exerting resilient tension on the trailing edge of the plate and with movable means for exerting tension on the leading edge against the resilient tension. As shown, springs 28, Fig. 4, press against hooks 31 engaging recesses in the trailing edge 16 of a stereotype plate 18, and manually-adjustable pivoted hooks 52 engage recesses 54 in the leading edge 56. The hooks 31 are mounted on pins 24 and have a limited pivotal movement about rounded ends 30 ; an assembly of hooks seated in a longitudinal slot is removable as a unit. The hooks 52 are carried by a shaft 36 adapted to be turned by means of a spherical eccentric sheave 80, Fig. 5, on which is mounted a stirrup 76 connected by a universal joint to an arm 62 fixed to the shaft 36. The joint comprises an eccentrically mounted pin 72 connecting the strirup 76 to a block 70 on which are trunnions 68 lying at right angles to the pin 72 and engaging holes in the arm 62. The angular movement of the eccentric 80 is limited by a pin 88 riding in a slot 90, and a spring- pressed pin 98 snaps into a recess 96 in the tension-exerting position of the eccentric. To ensure that the hooks 52 are in line, the operative faces of the hooks are machined while the shaft is under torsion which is corrected when the shaft is turned to tension the plate.
Patent GB-479368-A (GB)
Title: Apparatus for filling pies and the like or bottles with jelly or similar liquid
IPC: A21C15/00
Filed: 1936-09-03
Abstract: 479,368. Filling pies &c. and bottles. HARVEY, A. Sept. 3. 1936, No. 24120. [Class 28 (i)] [Also in Group XVII] An apparatus for filling pies &c. or bottles with jelly or similar liquid comprises a container 1 in which the jelly is under air pressure, and an arm 13 formed at one end with the plug part 12 of a swivel cock, the arrangement being such that when the arm 13 is depressed against the action of the returning-spring 23, the passages 17, 19 come into registration and the jelly is ejected through the nozzle 14 which is forced, during the depression of the arm 13, through the pie crust or into the bottle. The stationary part 11 of the swivel cock is screwed into the container 1 and secures a washer having an eyed anchor lug 24 for the spring 23. The movements of the arm 13 are limited by a pin 21 on the plug 12 working in a slot 22 in the part 11. The nozzle 14 is detachable and the arm 13 is provided with an operating plate 15. Any number of arms 13 may be provided, and the container 1 may be water-jacketed. The top of the container 1 is provided with a safety-valve and a removable charging door carrying a pressure gauge. A non-return valve is provided for the attachment of a hand pump, for use when compressed air is not available.
Patent GB-893719-A (GB)
Title: Improvements in or relating to table games
Filed: 1960-07-11
Abstract: 893,719. Table games. HJELMQUIST, S. July 11, 1960 [July 9, 1959], No. 24135/60. Class 132(2) In table-football &c., a ball or puck entering the goal 13 rolls into a recess 2 in which it moves a pivoted flap 7 to actuate a score indicator, the flap having a finger piece 9 by which it may be pivoted in the opposite direction to project the ball out of the recess on to the playing surface 1 for further play. The indicator may be a pivoted flag or a light or buzzer energized by a switch closed by movement of the flap 7.
Patent GB-1140040-A (GB)
Title: Electro-magnetic recording device and method of making same
Inventor: POOLE LESLIE JOHN
IPC: G03G19/00
Filed: 1966-05-31
Abstract: 1,140,040. Selective printing. STANDARD TELEPHONES & CABLES Ltd. 31 May, 1966, No. 24191/66. Heading B6F. [Also in Division G5] Selective electro-magnetic printing heads or magnetic tape recording heads (see Divisions G4-G6) comprise a plurality of contiguous cores 11 of soft iron provided with closely wound, single-turn windings 12 the ends of which are soldered to terminals 13 and the contiguous cores 11 are embedded in an epoxy resin block 14. Surface of block 14 through which the core ends are exposed may be coated with a wear resistant plastics film, or silicon nitride may be deposited thereon by a glow discharge process. Alternatively the epoxy resin may be modified by addition of a wear resistant filler such as amorphous silica. Heads are produced by locating the ends of cores 11 (Fig. 2) in a brass plate, which is surrounded by side-plates 6 serving also as supports for terminals 13. Following casting of the epoxy resin the brass plate 3 and side-plates 6 are removed and ends of cores 11 finished flush with the epoxy resin surface.
Patent GB-1516038-A (GB)
Title: Fractionation of whole wheat kernel
IPC: B02C9/02
Filed: 1976-06-11
Abstract: 1516038 Fractionating whole wheat FARMARCO INC 11 June 1976 24205/76 Heading A2Q A process for fractionating whole wheat kernel into its components including gluten, comprises (a) tempering the kernels to a moisture content of 12 to 30% by wt. (b) pin-milling the kernels into bran germ and endosperm particles, the latter being in the form of particles smaller than the bran and germ particles (c) separating the bran and germ particles from the endosperm particles, (d) hydrating the latter with just enough water to make a stiff dough and (e) working the dough mechanically and washing out the starch. The working of the dough may be done in two steps, first kneading and second cutting and stretching. After separation, the starch and gluten may be dried and recovered.
Patent GB-1277413-A (GB)
Title: Gas-liquid contacting for chemical processing
Inventor: WILSON STANLEY GEORGE
IPC: B01D47/00
Filed: 1968-04-11
Abstract: 1277413 Gas scrubber UNITED KING- DOM ATOMIC ENERGY AUTHORITY 2 July 1969 [11 April 1968 21 May 1968] 17426/68 and 24245/68 Heading B1R Gas to be scrubbed entering at 10 is forced by a fan 11 through a layer of foam-producing liquid supported on a foraminous member 12, foam collects in a chamber 15 before being destroyed in a centrifugal device 17, gas released from the foam leaves via outlet 20 and liquid is returned to the member 12 by pump 23 through a purifier 25. The centrifugal device may be replaced by a fan. Heat from the incoming gas to be scrubbed may be used to assist in the foam decaying. The apparatus may be associated with a housing for a nuclear reactor.
Patent GB-658384-A (GB)
Title: Improvements in or relating to table and like electric lamps
IPC: F21S6/00
Filed: 1949-09-21
Abstract: 658,384. Table and like lamps. ALADDIN INDUSTRIES, Inc. Sept. 21, 1949, No. 24277. Convention date, Oct. 9, 1948. [Classes 75(ii) and 75(iii)]. A substantially cylindrical shell 13, Fig. 2, containing an electric lamp socket 15 is supported. by an insulating disc 23 on an abutment 32 around a large neck opening 30 in a hollow lamp base 29 accommodating electric supply wires 19, and is secured by fastening means to the neck of the lamp base. Said fastening means may comprise a screw threaded ring 31 secured to the neck, and on which is screwed a threaded . ring 36 which during assembly is passed over a flange 24 at the lower end of the shell 13. A split ring 37 is then applied above the flange 24 so that when the ring 35 is screwed on to the ring 31 the split ring 37 prevents the flange 36 from passing the flange 24. The ring 31 may be omitted, the neck being formed with screw threads. Alternatively the shell 13, Fig. 7, may be provided with an annular shoulder 46 and a screw-threaded skirt 47 for engaging the screwed ring 31. An additional lamp socket 53 may be supported within the lamp base by a bracket 51 .riveted to the insulating disc 23, switching means enabling the lower lamp 54 to be energized instead of the upper for use as a night lamp. In a further construction external screw threads are provided on the lower end of the shell 13 for engagement with internal threads in the neck opening 30. Fig. 10 shows a further alternative fastening means in which a ring 66, secured in the lamp base by external projections 68, is provided with internal detent projections 69 for engaging detent openings 65 circumferentially arranged around the shell 13.
Patent GB-819269-A (GB)
Title: Improvements in or relating to blank transfer mechanism for machines having a numberof die stations
IPC: B21K27/04
Filed: 1956-08-08
Abstract: 819,269. Forging bolts and nuts WATERBURY FARREL FOUNDRY & MACHINE CO. Aug. 8, 1956 [Aug. 29, 1955], No. 24277/56. Class 83 (4). A mechanism for transferring workpieces between dies 14-17 mounted in a die block 11, comprises one or more sets of workpiece gripping fingers 33 mounted on a carrier 19 adapted to be oscillated in a plane substantially parallel to the face of the die block, means being provided for moving the carrier away from said face and for rotating said fingers during the oscillation. The carrier 19 is mounted on the crank pins 25 of a pair of crank shafts 23 carrying pinions 22 in mesh with a rack 20 adapted to be oscillated by a link 53. Lugs 43 on the carrier are slidably and rotatably mounted on vertical pins 42 each carried by a pair of links 40 pivoted at 41 to the fixed frame of the machine. Each set of fingers 33 is mounted on a vertical spindle 32 rotatable in an adjustable bushing 28 and whose upper end carries a gear segment 35 in mesh with a stationary gear segment 47. The reciprocation of the rack 20 causes the gripping fingers to describe an arcuate path 44 and simultaneously the carrier 19 is moved transversely through an arcuate path 45 away from the face of the die block thereby permitting the fingers to be rotated by the intermeshing gear segments 35, 47. The gear segment 35'is replaced by a block 54 which locks the spindle 32 when the fingers are not to be rotated. A limited relative vertical movement between the fingers 33 and carrier 19 is permitted by springs 37 so as to permit the fingers to be aligned with the die by means of stop screws 50 engageable in sockets 51. The machine is preferably used for making bolts, nuts or rivets.
Patent GB-247867-A (GB)
Title: Improvements in shield means for the keyholes of doors of fireproof safes and the like
IPC: E05B65/00
Filed: 1925-09-29
Abstract: 247,867. Cookson, B. W. Sept. 29, 1925. Keyholes, obstructing; locks, revolving-barrel. -Unauthorized access to the keyholes of locks is prevented by a boss of hard metal secured over the escutcheon-plate by a nut on the boss being screwed into a tapped hole in the plate by rotation of the barrel of a pin-tumbler lock. The escutcheon-plate 2 with keyhole 4 and tapped hole 6, is secured to the door 1 by bolts 3 and 5. The boss 10 carries a nut 7 sliding, in the sleeve 17 and having a slot in which works a pin 21 on the end of the barrel 11. The barrel 11 has secured to it a sleeve 13 turnable in a core 15 and barrel 11 contains the usual pintumblers so that when the correct key is inserted the barrel can be turned, the pin 21 turning the nut 7 to screw it into or out of the tapped hole 6, to secure or release the boss 10. A spring 30 tends to cause the engagement of the nut with the hole 6, and the nut has a central hole 22 of sufficient diameter to accommodate the end of the barrel. The plate 2 is recessed as at 23 so that when the boss 10 is secured thereon, a tool cannot be inserted to prise off the boss. A stud 8 may be provided on the escutcheon-plate to engage a recess 9 for suspending the boss when not in use.
Patent GB-1490325-A (GB)
Title: Refiners for materials such as pulp
IPC: B02C7/04
Filed: 1976-06-11
Abstract: 1490325 Cylindrical and conical refiners; disc mills ESCHER WYSS GmbH 11 June 1976 [11 June 1975] 24318/76 Heading B2A Some of the flanks of some at least of the refining teeth 11, 12 of a disc refiner or a conical or cylindrical mill are of greater hardness, typically >Brinell 600 than the tips which are typically between 280 and 320 Brinell. The hard surface layer 14 is applied to the leading and possibly trailing flanks and may be produced by a diffusion process e.g. carburizing boriding vanadizing nitriding or nickel diffusion, or by a hard-facing process, e.g. plasma spraying with chromium oxide, tungsten or a hard-facing alloy.
Patent GB-343013-A (GB)
Title: Improved manufacture of mercaptobenzothiazoles
IPC: C07D277/72
Filed: 1929-08-08
Abstract: Mercaptobenzothiazole and its nuclear derivatives are prepared by treating a salt, e.g. the sodium, potassium, or ammonium salt, of o-aminothiophenol or a nuclear derivative with an acid other than carbonic acid or hydrogen sulphide, e.g. hydrochloric or sulphuric acid, in the presence of carbon bisulphide.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of mercaptobenzothiazoles by heating "nascent" aminothiophenol in the presence of carbon bisulphide, e.g. by reducing a salt of aminothiophenol, such as an alkali salt or diortho-diamino-diphenyl-disulphide, to aminothiophenol in the presence of carbon bisulphide.  Examples are given according to which (1) the sodium salt of aminothiophenol is mixed with carbon bisulphide and treated with hydrogen sulphide; (2) carbon dioxide saturated with carbon bisulphide is passed through a mixture of amidothiophenol and sodium hydroxide; (3) diortho-diamino-diphenyl-disulphide, prepared by heating aniline with sulphur under a reflux condenser, is treated with hydrogen sulphide or sodium hydrosulphide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-621149-A (GB)
Title: Improved lock for bicycles
IPC: B62H5/06
Filed: 1946-08-15
Abstract: 621,149. Locking cycles. PAES, H. W. Aug. 15, 1946, No. 24333. [Class 79 (iii)] A bicycle lock for locking a reversible handle bar in a vertical position after rotation through 90 degrees comprises a bracket fast with the steering stem and having a forwardly projecting portion enclosing a space in which the handle bar can be locked after rotation into the vertical position. Fig. 5 shows the handlebar in normal position and Fig. 6 shows it turned and locked in space 8 of the bracket by a latch 7. The bracket 1, Fig. 1, carrying lamp bracket 5, embraces the steering stem in space 2 and is secured thereto by nut and bolt 3, 4. The latch 7 slides in the housing 6 to open the space 8 for reception of the handlebar, after which the latch is returned to the position shown and locked by means of a turn-key 12 whose end is shaped to engage the screw plug 10 which is screwed into the threaded boss 9 until a pin 13 on the plug 10 engages in a recess in the latch. In the modification shown in Fig. 2 the sliding latch 7 is in the form of a loop with a space 14 between its two ends, the latch being slidably carried by member 15 to which it can be locked as shown by turn-key 12, screwed plug 10 with pin 13 engaging a recess in the latch ; to insert or free the handlebar the device is unlocked and the latch moved to the left and the handlebar passed into or out of the space 8 through the gap 14. In the form shown in Fig. 3 the bracket 1 embraces the steering stem in space 2 and the handlebar is locked in space 8 which is enclosed by the latch 7 pivoted at 18 and locked by a retractable pin 13 controlled by the permutation lock 16. In a further modification the pivoted latch 7 of Fig. 3 may be pivoted at the right hand end and locked at its left hand end by the type of screw lock shown in Figs. 1 and 2.
Patent GB-296985-A (GB)
Title: A process for recovering sugar from the exhausted sludges or scums of the sugar manufacture
IPC: C13B20/16
Filed: 1928-08-24
Abstract: 296,985. Claassen, H. Sept. 10, 1927, [Convention date]. Refining sugar.-The sugar remaining in the exhausted scums of beet sugar works is recovered by mashing and digesting the scum cake, removed from the filters, with water at a fairly high temperature and separating the particles of sediment by filtering or otherwise and returning the sugar-containing liquid as wash liquid for the filter presses instead of the usual pure water, or introducing it at another stage of the refining process.
Patent GB-667135-A (GB)
Title: Calcium carbonate monohydrate
IPC: C01F11/18
Filed: 1949-09-23
Abstract: Precipitated calcium carbonate monohydrate, claimed as a new compound, is obtained (i) by reacting an aqueous solution containing calcium ions with an aqueous solution containing carbonate ions with stirring in a cold saturated sodium chloride solution containing magnesium ions or glassy sodium polyphosphate of Na2O/P2O5 mol. ratio 1.12/1, or (ii) by adding a solution of sodium carbonate to an aqueous solution containing calcium ions and magnesium ions at room temperature, stirring and allowing to stand for a day; either or both solutions may contain sodium chloride.  A suitable concentration of magnesium ions is between 0.05 and 0.5 per cent expressed as magnesium chloride: 300-800 parts polyphosphate per million of the reaction mixture may be used.  A molar excess of one reagent, e.g. 3-8 mols. sodium carbonate per mol. calcium chloride, is prepared. The product may be dehydrated to give an hydrous calcium carbonate suitable as a filler for rubber, paint and paper.